Patton who has had shoulder issues the last three seasons, will likely have an MRI on his shoulder and may require surgery. He rose from Double-A Corpus Christi to the major leagues last season, posting a 3.51 ERA in 151 1/3 major league innings and a 3.55 ERA in 12 2/3 innings for the Astros. The Orioles acquired Patton this off-season in the trade that sent shortstop Miguel Tejada to the Astros.